It's always good to start with an anchor chart:
This site has LOTS of great homophone games and activities for teachers and for kids! Lots to choose from here. I have included three images to give you an idea of what is included here. Click on the link below to go to this great site!
The homophone express
Super Match Game
Multiple Meaning Words (love this one!)
Oh my goodness! I saw this video from "Between the Lions" and couldn't resist. It's perfect for second and third grades.
Now time for that freebie! Hope you and your students enjoy it! It covers six homophones that are often misspelled!